There's a house martin nest under the eaves of my house, you can hear the chicks chirping away all day but it's proving very difficult to get any decent pictures as it's in the shadows and when the parents come to bring food they are ridiculously fast. I will keep trying.
Remove plaster/plasterboard, insulation and brickwork from inside the house thus filming from inside the nest. They'll not notice if you are really quiet.
There's a house martin nest under the eaves of my house, you can hear the chicks chirping away all day but it's proving very difficult to get any decent pictures as it's in the shadows and when the parents come to bring food they are ridiculously fast. I will keep trying.